All vulnerabilities
CVE-2026-35381GHSA-pmfc-4wjj-gmhx

uu_cut: cut: -s ignored in -z -d '' newline-delimiter mode

Uutils uu_cutrustLibraries & packages
Open in ThreatlineRecord JSON
CVSS
3.3Low
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.15%Chance of exploitation activity in the next 30 days, higher than 4% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0.8.0Fixed versionGitHub
Published22 Apr 2026Updated 6 Oct 2026CVE List

What fixes it

  • 0.8.0uu_cut, rustGitHub
  • 0.8.0coreutilsCVE List
  • 0.8.0uu_cut, crates.ioOSVcargo update -p uu_cut --precise 0.8.0

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

cut routes -z -d '' through a special newline-delimiter path that ignores the -s only-delimited flag, emitting whole undelimited records (plus NUL) that should be suppressed. Pipelines relying on cut -s to drop undelimited records process data that should be filtered.

printf 'abc' | cut -z -d '' -s -f 1 | od -An -tx1   # GNU: no output ; uutils: 61 62 63 00

--- _Zellic private finding (zellic-ext/coreutils-private PR #102). Reported in the Zellic *uutils coreutils Program Security Assessment* (for Canonical, Jan 2026), audited commit 3a07ffc5a9bd4c283e75afa548ba1f1957bad242._

Text from GitHub Advisory Database

Affected versions 3

  • uu_cut, rust< 0.8.0GitHub
  • coreutilsaffected: all versions before 0.8.0CVE List
  • uu_cut, crates.iofrom first release, fixed in 0.8.0OSV

References 6